CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Comprehensive Income (Loss) [Member]	Preferred Stock [Member]	Common Stock [Member]	Treasury Stock [Member]	Paid-In Capital [Member]	Retained Earnings [Member]	Non-Controlling Interest [Member]	Total
Balance, at beginning at Dec. 31, 2012	$ (159,156)	$ 1	$ 84	$ (2)	$ 272,774	$ (156,559)	$ 16,831	$ 133,129
Balance, at beginning (in shares) at Dec. 31, 2012			8,413,669
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Series C preferred stock dividends (7.0% per year)					(210)			(210)
Series D preferred stock dividends (9.0% per year)					(900)			(900)
Net income (loss)	$ 59,509					58,530	979	59,509
Sale of controlling interest					56			56
Distribution to non-controlling interests							(14)	(14)
Balance, at the end at Dec. 31, 2013	$ (99,647)	1	$ 84	(2)	271,720	(98,029)	17,796	191,570
Balance, at the end (in shares) at Dec. 31, 2013			8,413,669
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Series C preferred stock dividends (7.0% per year)					(106)			(106)
Series D preferred stock dividends (9.0% per year)					(899)			(899)
Net income (loss)	41,977					41,578	399	41,977
Issuance of common stock			$ 3		934			937
Issuance of common stock (in shares)			304,298
Distribution to non-controlling interests							(31)	(31)
Balance, at the end at Dec. 31, 2014	(57,670)	1	$ 87	(2)	271,649	(56,451)	18,164	233,448
Balance, at the end (in shares) at Dec. 31, 2014			8,717,967
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Series D preferred stock dividends (9.0% per year)					(900)			(900)
Net income (loss)	(7,504)					(7,636)	132	(7,504)
Contributions from non-controlling interests							11	11
Balance, at the end at Dec. 31, 2015	$ (65,174)	$ 1	$ 87	$ (2)	$ 270,749	$ (64,087)	$ 18,307	$ 225,055
Balance, at the end (in shares) at Dec. 31, 2015			8,717,967